Waste cutting device for printing and packaging machinery

Abstract

The invention discloses a waste cutting device for printing and packaging machinery, and particularly relates to the technical field of waste cutting devices.The waste cutting device comprises a back plate, an auxiliary plate is fixedly connected to the rear end of the vertical part of the back plate, a discharging assembly is fixedly installed on the lower portion of the rear end of the auxiliary plate, and an adjusting assembly is slidably installed on the upper portion of the rear end of the auxiliary plate; a cutting assembly is fixedly installed on the lower portion of the outer surface of the adjusting assembly, and a transferring assembly is fixedly installed on the outer surface of the adjusting assembly and the outer surface of the discharging assembly jointly. According to the waste material cutting device for the printing and packaging machinery, the discharging assembly can be matched with the conveying assembly in the using process, cut waste materials are jacked up, manual waste material removal is not needed, meanwhile, the adjusting assembly can be matched with the cutting assembly, and when the adjusting assembly moves downwards, the waste materials are cut off, and the waste materials are cut off. And the cutting assembly is driven to cut off waste materials on the edges of the printing packages, and meanwhile the cutting assembly can press and fix finished printing packages.

Description

Technical Field

[0001] This invention relates to the field of waste removal devices, and particularly to a waste removal device for printing and packaging machinery. Background Technology

[0002] Waste removal devices for printing and packaging machinery are mainly used to remove edge waste during the printing and packaging process. These devices are commonly used on printing and packaging production lines for materials such as paper, plastic film, and cardboard, aiming to improve production efficiency, reduce manual intervention, and ensure the cleanliness of finished packaging. The working principle of a waste removal device is generally to precisely cut the edges of printed packaging materials using cutting tools, cutting wheels, or lasers. Typically, waste consists of excess material at the edges during the printing process or defective parts generated during the transfer of the printing press. This waste not only affects the appearance of the finished product but may also affect subsequent processing and packaging. Therefore, the waste removal device can remove this edge waste during the packaging production process.

[0003] However, in the existing technology, during the printing and packaging cutting process, it is still necessary to manually remove waste from the surface of the finished product. Although the cutting process can be completed by mechanized operation, the waste removal step usually relies on manual operation. This not only increases the labor intensity, but also makes it easy for improper operation to result in incomplete removal of waste, affecting the quality and appearance of the finished product. In order to improve the degree of automation and production efficiency, the existing technology urgently needs to be further improved to reduce the reliance on manual operation and realize the automatic collection and removal of waste, thereby improving the overall efficiency of the packaging production line and the product quality.

[0004] Chinese Patent Publication No. CN218313687U discloses a waste removal device for printing and packaging machinery, comprising a housing. A first telescopic rod is fixedly connected to the middle of both the left and right ends of the inner side of the housing. A second sliding groove is provided at the front right side of the second fixing plate on the same side, and a first sliding groove is provided at the front left side of the first fixing plate on the same side. A cutter is fixedly connected to the middle of the bottom end of the fixing block, and a vacuum cleaner is fixedly connected to the middle of the rear end of the outer side of the opening groove. In the aforementioned patent document, the first telescopic rod is activated by a controller to clamp the product, the height of the first fixing plate is adjusted by loosening the nut, and the product is cut downwards by the cutter in conjunction with the second telescopic rod, avoiding product displacement during cutting. The vacuum cleaner is activated by the controller to absorb the debris generated during cutting. The debris is filtered through a filter screen, and the debris is removed by opening the rotating plate, avoiding resource waste.

[0005] Although the equipment described in the aforementioned patent documents can cut and process waste materials from printing and packaging, in actual use, it is still necessary to manually remove the waste materials from the surface of the finished product, thereby reducing the overall processing efficiency. Summary of the Invention

[0006] The main objective of this invention is to provide a waste removal device for printing and packaging machinery, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A waste removal device for printing and packaging machinery includes a back plate, a hydraulic cylinder fixedly connected to the middle of the upper end of the back plate, a sub-plate fixedly connected to the rear end of the vertical portion of the back plate, a feeding assembly fixedly installed at the lower rear end of the sub-plate, an adjusting assembly slidably installed at the upper rear end of the sub-plate, a cutting assembly fixedly installed at the lower outer surface of the adjusting assembly, and a transfer assembly fixedly installed on the outer surfaces of the adjusting assembly and the feeding assembly.

[0008] Preferably, the feeding assembly includes a fixed plate fixedly connected to the lower rear end of the sub-plate, a feeding platform fixedly connected to the rear end of the fixed plate, a triangular plate fixedly connected to the upper left end of the feeding platform, an inclined plate fixedly connected to the rear end of the feeding platform, a rectangular groove penetrating to the right end of the lower middle part of the left end of the feeding platform, a U-shaped plate fixedly connected to the edge of the top wall of the rectangular groove, and a plurality of placement holes opened in the top wall of the rectangular groove, with top columns slidably connected to the inner surfaces of the plurality of placement holes.

[0009] Preferably, an L-shaped groove is provided on the front right side of the upper end of the feeding platform. Three springs are fixedly connected to the bottom wall of the L-shaped groove. The three springs are arranged in an L-shape. An L-shaped plate is fixedly connected to the upper end of the three springs. The L-shaped plate is slidably connected to the inner surface of the L-shaped groove.

[0010] Preferably, the adjustment assembly includes a cavity box one, the front end of which is slidably connected to the rear end of the sub-plate. The output end of the hydraulic cylinder is fixedly connected to the upper end of the cavity box one via a piston rod. A gear one is rotatably connected to the front side of the middle of the top wall of the cavity box one, and a gear two is rotatably connected to the middle of the top wall of the cavity box one. The gear one and the gear two mesh with each other. A cavity box two is fixedly connected to the middle of the lower end of the cavity box one. A partition is fixedly connected to the middle of the front side wall and the middle of the rear side wall of the inner surface of the cavity box two. An extension rod is fixedly connected to the middle of the lower end of the gear two. 1. The lower end of the extension rod passes through the partition plate. The lower end of the gear 2 is fixedly connected to the middle of the lower end of the extension rod 2. The lower end of the extension rod 2 passes through the lower end of the cavity box 2. The lower end of the extension rod 3 is fixedly connected to the lower end of the extension rod 3. The lower end of the gear 3 is rotatably connected to the bottom wall of the cavity box 2. The middle of the outer surface of the extension rod 2 is rotatably connected to the gear 5. The lower end of the gear 5 is rotatably connected to the bottom wall of the cavity box 2. The middle of the bottom wall of the cavity box 2 is rotatably connected to the gear 4. The gear 3 and the gear 5 are both meshed with the gear 4. A drive mechanism is installed in the inner cavity of the gear 1.

[0011] Preferably, the cutting assembly includes a U-shaped box, a sleeve is fixedly connected to the middle of the upper end of the U-shaped box, the upper end of the sleeve passes through the lower end of the cavity box two and is fixedly connected to the lower end of the gear five, the lower end of the gear four is rotatably connected to the upper end of the U-shaped box, a rectangular plate is fixedly connected to the right side of the front sidewall of the inner surface and the right side of the rear sidewall of the inner surface of the U-shaped box, an extension rod three is fixedly connected to the middle of the lower end of the extension rod two, a gear six is ​​fixedly connected to the lower end of the extension rod three, the upper end of the gear six is ​​rotatably connected to the lower end of the rectangular plate, a rack is slidably connected to the front side of the lower end of the rectangular plate, the rack meshes with the gear six, a sliding plate is slidably connected to the left side of the front sidewall of the inner surface and the left side of the rear sidewall of the inner surface of the U-shaped box, a cutting blade is fixedly connected to the left side of the lower end of the sliding plate, and the right end of the sliding plate is fixedly connected to the left end of the rack.

[0012] Preferably, a fixing block is fixedly connected to the lower right front part and the lower right rear part of the rectangular plate. A cylinder is fixedly connected to the lower end of each of the two fixing blocks. An extrusion column is slidably connected to the inner surface of each cylinder. A guide plate is fixedly connected to the lower right side of the cutting blade. A plurality of cylinders are linearly arrayed and fixedly connected to the lower end of the guide plate. An extrusion column is slidably connected to the inner surface of each of the plurality of cylinders. A spring is fixedly connected to the upper end of the extrusion column on the same side that is close to the top wall of the cylinder on the same side and the upper end of the extrusion column on the same side that is close to the top wall of the cylinder on the same side.

[0013] Preferably, the transfer assembly includes two connecting plates. A pressing plate is fixedly connected to the lower ends of both connecting plates on opposite sides. A base is fixedly connected to the lower left and right sides of the sub-plate. An L-shaped plate is fixedly connected to the upper ends of both bases. An L-shaped groove is formed on the upper end of each L-shaped plate. A transfer plate is slidably connected to the inner surface of the horizontal portion of each L-shaped groove. The pressing plates are slidably connected to the inner surface of the vertical portion of the L-shaped groove on the same side. A plurality of springs are linearly arrayed and fixedly connected to the ends of the transfer plates and the L-shaped grooves on the same side that are close to each other.

[0014] Preferably, the ends of the two connecting plates that are close to each other are fixedly connected to the left and right ends of the cavity box, respectively.

[0015] Preferably, both of the transfer plates cooperate with the cavity formed by the rectangular groove and the zigzag plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the setting of the feeding component, can cooperate with the transfer component during use to lift the cut-off waste material, eliminating the need for manual removal of the waste material. Furthermore, the transfer component and the adjustment component cooperate with each other, enabling the adjustment component to drive the transfer component to move downward, thereby changing the air pressure inside the feeding component and lifting the waste material. At the same time, the adjustment component can cooperate with the cutting component, so that when the adjustment component moves downward, it drives the cutting component to cut off the waste material at the edge of the printed packaging, while also pressing and fixing the finished printed packaging, thereby improving the overall processing stability and efficiency.

[0017] 2. The present invention, through the setting of the adjustment component, cooperates with the cutting component during use to achieve the effect of changing the cutting position when cutting the two sides of the printed packaging, eliminating the need for manual cutting and thus improving the overall processing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a rear view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention from the left side; Figure 4 This is a schematic diagram of the overall structure of the feeding assembly of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the L-shaped plate of the present invention; Figure 6 This is a schematic diagram of the installation position of the Hui-shaped plate of the present invention; Figure 7 This is a schematic diagram of the overall structure of the adjustment component and the cutting component of the present invention; Figure 8 This is a schematic diagram of the overall structure of the adjustment component and the cutting component of the present invention from another perspective; Figure 9 This is a schematic diagram of the overall structure of the transmission component of the present invention; Figure 10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point A in the middle; Figure 11 For the present invention Figure 9 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Back plate; 2. Hydraulic cylinder; 3. Sub-plate; 4. Feeding assembly; 41. Fixing plate; 42. Feeding platform; 43. Triangular plate; 44. Inclined plate; 45. Rectangular groove; 46. U-shaped plate; 47. Placement hole; 48. Top column; 461. L-shaped groove one; 462. Spring one; 463. L-shaped plate one; 5. Adjustment assembly; 51. Cavity box one; 52. Gear one; 53. Gear two; 54. Cavity box two; 55. Partition plate; 56. Extension rod one; 57. Extension rod two; 58. Gear three; 59. Gear four; 5 0. Gear 5; 6. Cutting assembly; 61. U-shaped box; 62. Sleeve; 63. Rectangular plate; 64. Extension rod 3; 65. Gear 6; 66. Rack; 67. Slide plate; 68. Cutting blade; 631. Fixing block; 632. Cylinder 1; 633. Extrusion column 1; 681. Guide plate; 682. Cylinder 2; 683. Extrusion column 2; 684. Spring 2; 7. Transfer assembly; 71. Connecting plate; 72. Pressing plate; 73. Base; 74. L-shaped plate 2; 75. L-shaped groove 2; 76. Transfer plate; 77. Spring 3. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a waste removal device for printing and packaging machinery includes a back plate 1. A hydraulic cylinder 2 is fixedly connected to the middle of the upper end of the back plate 1. A sub-plate 3 is fixedly connected to the rear end of the vertical part of the back plate 1. A feeding assembly 4 is fixedly installed at the lower rear end of the sub-plate 3. An adjustment assembly 5 is slidably installed at the upper rear end of the sub-plate 3. A removal assembly 6 is fixedly installed on the lower outer surface of the adjustment assembly 5. A transfer assembly 7 is fixedly installed on the outer surfaces of the adjustment assembly 5 and the feeding assembly 4.

[0022] During operation, the output end of the hydraulic cylinder 2 is controlled to drive the adjusting component 5, which is fixedly installed thereto, downward via the piston rod. The adjusting component 5 can drive the cutting component 6 in sections, so that the cutting component 6 can cut the printed packaging. When cutting the printed packaging, the cutting component 6 can press and limit the uncut positions to prevent the printed packaging from shifting during cutting. At the same time, during the cutting process, the adjusting component 5 drives the transmission component 7, which can change the air pressure inside the feeding component 4, so that the feeding component 4 can lift up the cut waste material and then let it out from both sides. There is no need to manually peel the waste material off the surface of the finished product, thereby improving the overall processing efficiency of the printed packaging.

[0023] Example 2, as Figure 3, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the feeding assembly 4 in this embodiment includes a fixed plate 41 fixedly connected to the lower rear end of the sub-plate 3. A feeding platform 42 is fixedly connected to the rear end of the fixed plate 41. A triangular plate 43 is fixedly connected to the upper left end of the feeding platform 42. An inclined plate 44 is fixedly connected to the rear end of the feeding platform 42. A rectangular groove 45 penetrating the right end is opened on the lower side of the middle of the left end of the feeding platform 42. A U-shaped plate 46 is fixedly connected to the edge of the top wall of the rectangular groove 45. A plurality of placement holes 47 are opened on the top wall of the rectangular groove 45. A top column 48 is slidably connected to the inner surface of each of the plurality of placement holes 47.

[0024] Furthermore, an L-shaped groove 461 is provided on the front right side of the upper end of the feeding platform 42. Three springs 462 are fixedly connected to the bottom wall of the L-shaped groove 461. The three springs 462 are arranged in an L-shape. An L-shaped plate 463 is fixedly connected to the upper end of the three springs 462. The L-shaped plate 463 is slidably connected to the inner surface of the L-shaped groove 461.

[0025] Furthermore, the adjustment assembly 5 includes a cavity box 51, the front end of which is slidably connected to the rear end of the sub-plate 3. The output end of the hydraulic cylinder 2 is fixedly connected to the upper end of the cavity box 51 via a piston rod. A gear 52 is rotatably connected to the front side of the middle of the top wall of the cavity box 51, and a gear 53 is rotatably connected to the middle of the top wall of the cavity box 51. Gears 52 and 53 mesh with each other. A cavity box 54 is fixedly connected to the middle of the lower end of the cavity box 51. A partition 55 is fixedly connected to the middle of the front side wall and the middle of the rear side wall of the inner surface of the cavity box 54. An extension rod is fixedly connected to the middle of the lower end of gear 52. 56. The lower end of extension rod 1 56 passes through partition 55. The lower middle part of gear 2 53 is fixedly connected to extension rod 2 57. The lower end of extension rod 2 57 passes through the lower end of cavity box 2 54. The lower end of extension rod 1 56 is fixedly connected to gear 3 58. The lower end of gear 3 58 is rotatably connected to the bottom wall of cavity box 2 54. The middle part of the outer surface of extension rod 2 57 is rotatably connected to gear 50. The lower end of gear 50 is rotatably connected to the bottom wall of cavity box 2 54. The middle part of the bottom wall of cavity box 2 54 is rotatably connected to gear 4 59. Gear 3 58 and gear 5 50 mesh with gear 4 59. A drive mechanism is installed in the inner cavity of gear 1 52.

[0026] Furthermore, the cutting component 6 includes a U-shaped box 61, with a sleeve 62 fixedly connected to the middle of the upper end of the U-shaped box 61. The upper end of the sleeve 62 passes through the lower end of the cavity box 54 and is fixedly connected to the lower end of the gear 50. The lower end of the gear 4 59 is rotatably connected to the upper end of the U-shaped box 61. A rectangular plate 63 is fixedly connected to the right side of the front side wall and the right side of the rear side wall of the inner surface of the U-shaped box 61. An extension rod 3 64 is fixedly connected to the middle of the lower end of the extension rod 2 57. A gear 65 is fixedly connected to the lower end of the extension rod 3 64. The upper end of the gear 65 is rotatably connected to the lower end of the rectangular plate 63. A rack 66 is slidably connected to the front side of the lower end of the rectangular plate 63. The rack 66 and the gear 65 mesh with each other. A sliding plate 67 is slidably connected to the left side of the front side wall and the left side of the rear side wall of the inner surface of the U-shaped box 61. A cutting blade 68 is fixedly connected to the left side of the lower end of the sliding plate 67. The right end of the sliding plate 67 is fixedly connected to the left end of the rack 66.

[0027] Furthermore, a fixing block 631 is fixedly connected to the lower right front and right rear of the rectangular plate 63. A cylinder 632 is fixedly connected to the lower end of each fixing block 631. An extrusion column 633 is slidably connected to the inner surface of the cylinder 632. A guide plate 681 is fixedly connected to the lower right of the cutting blade 68. Several cylinders 682 are linearly arrayed and fixedly connected to the lower end of the guide plate 681. An extrusion column 683 is slidably connected to the inner surface of the cylinders 682. A spring 684 is fixedly connected to the upper end of the extrusion column 633 on the same side that is close to the top wall of the cylinder 632 on the same side and the upper end of the extrusion column 683 on the same side that is close to the top wall of the cylinder 682 on the same side.

[0028] Furthermore, the transfer assembly 7 includes two connecting plates 71. Pressing plates 72 are fixedly connected to the lower ends of the two connecting plates 71 on opposite sides. Bases 73 are fixedly connected to the lower left and lower right sides of the sub-plate 3. L-shaped plates 74 are fixedly connected to the upper ends of the two bases 73. L-shaped grooves 75 are opened on the upper ends of the two L-shaped plates 74. Transfer plates 76 are slidably connected to the inner surfaces of the horizontal portions of the two L-shaped grooves 75. The two pressing plates 72 are slidably connected to the inner surfaces of the vertical portions of the L-shaped grooves 75 on the same side. Several springs 77 are linearly arrayed and fixedly connected to the ends of the transfer plates 76 and the L-shaped grooves 75 on the same side that are close to each other.

[0029] Furthermore, the ends of the two connecting plates 71 that are close to each other are fixedly connected to the left and right ends of the cavity box 51, respectively.

[0030] Furthermore, both transfer plates 76 cooperate with the cavities formed by the rectangular groove 45 and the meander plate 46.

[0031] During use, the printed packaging to be cut is placed on the upper side of the feeding table 42. During the placement process, the right right angle of the printed packaging can be aligned with the L-shaped plate 463, so that the front and right sides of the printed packaging are flush. Then, by controlling the hydraulic cylinder 2, the output end of the hydraulic cylinder 2 drives the cavity box 51 fixedly connected to it to move downward through the piston rod. When the cavity box 51 moves downward, it can simultaneously drive the cavity box 54 to move downward. Since the gear 50 is rotatably connected to the bottom wall of the cavity box 54, and the sleeve 62 fixedly connected to the lower end of the cavity box 54 is rotatably connected to the upper end of the U-shaped box 61, when the cavity box 51 moves downward, it can simultaneously drive the U-shaped box 61 to move downward. As the rectangular box 61 moves downward, the lower ends of several extrusion columns 683 and the lower ends of extrusion column 633 on the right side will first contact the upper surface of the printed packaging. Then, extrusion column 633 and extrusion column 683 will both press the spring 684 on the same side. The spring 684 will allow extrusion column 683 and extrusion column 633 to always apply downward pressure, thereby pressing and limiting the printed packaging placed on the upper side of the feeding table 42. The lower end of the rectangular plate 63 can press the L-shaped plate 463 into the L-shaped groove 461 to avoid affecting the subsequent cutting work. Immediately afterward, the U-shaped box 61 continues to move downward. Since the lower end of the sliding plate 67 connected to the inner left side of its inner surface is fixedly connected to the cutting blade 68, the cutting blade 68 can cut the left side of the printed packaging. During this process, the left and right ends of the cavity box 51 simultaneously drive the connecting plate 71 on the same side to move downward. When the connecting plates 71 on both sides move downward, the pressing plates 72 on both sides can move downward in the L-shaped groove 75 on the same side along with the connecting plates 71. When the pressing plates 72 on the same side slide downward on the inner surface of the L-shaped groove 75 on the same side, since the two bases 73 are connected to the rectangular groove 45 on the same side, the gas in the L-shaped groove 75 is squeezed. The squeezed gas can then push the transfer plate 76, so that the transfer plate 76 on the same side slides into the rectangular groove 45 on the same side. As can be seen from the above, both transfer plates 76 cooperate with the cavity formed by the rectangular groove 45 and the square plate 46. Therefore, when the transfer plate 76 on the same side slides into the rectangular groove 45 on the same side, the air pressure in the rectangular groove 45 can be changed at the same time, so that the top posts 48 in the placement holes 47 are lifted by the air pressure. The top posts 48 in the middle position will not be lifted up under the weight of the printed packaging and the downward pressing action of the extrusion posts 683 and 633. The top posts 48 on the left side can lift the cut printed packaging up and separate it from the finished printed packaging. The waste material lifted on the left side will fall to the front or back along the upper end of the triangular plate 43. After the waste material on the left side of the printed packaging is removed, the hollow box 51 is lifted upward by starting the hydraulic cylinder 2. During this process, the hollow box 51 can drive the connecting plates 71 on both sides to move upward. When the connecting plates 71 on both sides move upward, the pressing plates 72 on both sides can be pulled upward from the L-shaped groove 75 on the same side. When the pressing plates 72 on both sides are pulled upward in the L-shaped groove 75 on the same side, the transfer plates 76 on both sides can return to their initial state in the L-shaped groove 75 on the same side. At this time, under the action of the spring 77 on the same side, the transfer plate 76 can be assisted to rebound. When the transfer plate 76 slides from the cavity formed by the rectangular groove 45 and the back plate 46 into the L-shaped groove 75 on the same side, the air pressure in the rectangular groove 45 can be changed, causing several top columns 48 to fall to the bottom wall of the placement hole 47 on the same side. Since the lower hole diameter of several placement holes 47 is smaller than its upper hole diameter, several top columns 48 will not fall out of the placement hole 47. After the waste material removal work on the left side of the printed packaging is completed, the drive mechanism inside gear 52 can be controlled to rotate it. When gear 52 rotates, it meshes with gear 53, causing gear 53 to rotate as well. When gear 53 rotates, the extension rod 57 fixedly connected to its lower end can drive the extension rod 64 to rotate. The extension rod 64 is fixedly connected to the upper end of gear 65, and gear 65 meshes with rack 66. Therefore, when gear 65 rotates with extension rod 64, rack 66 can drive the slide plate 67 fixedly connected to it to slide inward in the inner cavity of the U-shaped box 61. At the same time, since gear 50 is rotatably connected to the outer surface of extension rod 57, gear 50 will not rotate with extension rod 57. When gear 52 rotates, its The extension rod 56 fixedly connected to the lower end can drive the gear 58 to rotate. Both the gear 58 and the gear 50 mesh with the gear 4 59. Therefore, the rotation direction of the gear 50 is opposite to the rotation direction of the extension rod 57. This causes the gear 50 to drive the sleeve 62 fixedly connected to its lower end to rotate, which in turn causes the sleeve 62 to drive the U-shaped box 61 fixedly connected to it to rotate. Each rotation of the gear 50 only requires the sleeve 62 to rotate 90 degrees. Then, the cutting blade 68 fixedly connected to the lower end of the slide plate 67 faces the rear of the printed packaging. At this time, the above cutting operation is repeated to remove the waste material of the printed packaging. The several top posts 48 located on the rear side can lift the waste material located on the rear side and then slide it outward from the inclined plate 44. Therefore, the cutting operation is the same as the above operation, so this solution will not be described in detail.

[0032] When cutting the left side of the new printed packaging later, simply reverse the drive mechanism in gear 52 to make the slide plate 67 slide outward and the cutting blade 68 move to the top of the printed packaging on the left. The specific operation process is the same as described above, so this solution will not elaborate further.

[0033] The aforementioned drive mechanism consists of a motor and a connecting rod, as is the case in the prior art. In this solution, it is only necessary to ensure that the motor is installed on the upper end of the cavity box 51 and that the output end of the motor is fixedly connected to the inside of the gear 52. Its specific shape, installation method, circuit connection method, and control method are all conventional designs and can be adjusted according to actual production needs. Therefore, this solution will not elaborate on them in detail.

[0034] It should be noted that the specific installation method, circuit connection method, and control method of the hydraulic cylinder 2 used in this invention are all conventional designs, and will not be described in detail here.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A waste cutting device for printing packaging machines, comprising a backplate (1), characterized in that: The back plate (1) upper end middle part is fixedly connected with hydraulic cylinder (2), the back plate (1) vertical part rear end is fixedly connected with vice plate (3), vice plate (3) rear end lower part is fixedly installed with discharging assembly (4), vice plate (3) rear end upper part is slidably installed with adjusting assembly (5), adjusting assembly (5) outer surface lower part is fixedly installed with cutting assembly (6), adjusting assembly (5) and discharging assembly (4) outer surface are fixedly installed with transmission assembly (7) together.

2. A waste trimmer for a printing and packaging machine according to claim 1, characterized in that: The discharging assembly (4) includes a fixed plate (41) fixedly connected to the lower part of the rear end of the vice plate (3), a discharging table (42) fixedly connected to the rear end of the fixed plate (41), a triangular plate (43) fixedly connected to the upper part of the left end of the discharging table (42), an inclined plate (44) fixedly connected to the rear end of the discharging table (42), a rectangular slot (45) extending through the right end of the discharging table (42) and formed in the lower side of the middle part of the left end of the discharging table (42), a back-to-back plate (46) fixedly connected to the top wall edge of the rectangular slot (45), and a plurality of placement holes (47) formed in the top wall of the rectangular slot (45), wherein the inner surfaces of the plurality of placement holes (47) are slidably connected with a plurality of top columns (48).

3. A waste trim removal device for a printing and packaging machine according to claim 2, characterized in that: The discharging table (42) is provided with an L-shaped slot (461) in the front part of the right side of the upper end, three springs (462) are fixedly connected to the bottom wall of the L-shaped slot (461), the three springs (462) are arranged in an L shape, an L-shaped plate (463) is fixedly connected to the upper ends of the three springs (462), and the L-shaped plate (463) is slidably connected to the inner surface of the L-shaped slot (461).

4. A waste trimmer for a printing and packaging machine according to claim 2, characterized in that: The adjusting assembly (5) comprises a cavity box one (51), the cavity box one (51) front end sliding connection is in the rear end of the vice board (3), the hydraulic cylinder (2) output end is fixedly connected with the upper end of the cavity box one (51) through the piston rod, the cavity box one (51) top wall middle part front side is rotatably connected with gear one (52), the cavity box one (51) top wall middle part is rotatably connected with gear two (53), the gear one (52) and the gear two (53) are mutually engaged, the cavity box one (51) lower end middle part is fixedly connected with cavity box two (54), the cavity box two (54) inner surface front side wall middle part and inner surface rear side wall middle part are fixedly connected with the baffle (55) in common, the gear one (52) lower end middle part is fixedly connected with extension rod one (56), the extension rod one (56) lower end penetrates the baffle (55), the gear two (53) lower end middle part is fixedly connected with extension rod two (57), the extension rod two (57) lower end penetrates the lower end of the cavity box two (54), the extension rod one (56) lower end is fixedly connected with gear three (58), the gear three (58) lower end is rotatably connected to the bottom wall of the cavity box two (54), the extension rod two (57) outer surface middle part is rotatably connected with gear five (50), the gear five (50) lower end is rotatably connected to the bottom wall of the cavity box two (54), the cavity box two (54) bottom wall middle part is rotatably connected with gear four (59), the gear three (58) and the gear five (50) are all mutually engaged with the gear four (59), the gear one (52) inner chamber is installed with drive mechanism.

5. A waste trimmer for a printing and packaging machine according to claim 4, characterized in that: The resection assembly (6) comprises a meandering box (61), the meandering box (61) upper end middle part is fixedly connected with sleeve (62), the sleeve (62) upper end penetrates the lower end of the cavity box two (54) and is fixedly connected with the gear five (50) lower end, the gear four (59) lower end is rotatably connected to the upper end of the meandering box (61), the meandering box (61) inner surface front side wall right part and inner surface rear side wall right side are fixedly connected with rectangular plate (63) in common, the extension rod two (57) lower end middle part is fixedly connected with extension rod three (64), the extension rod three (64) lower end is fixedly connected with gear six (65), the gear six (65) upper end is rotatably connected with the lower end of the rectangular plate (63), the rectangular plate (63) lower end front side is slidingly connected with rack (66), the rack (66) and the gear six (65) are mutually engaged, the meandering box (61) inner surface front side wall left part and inner surface rear side wall left part are slidingly connected with sliding plate (67) in common, the sliding plate (67) lower end left side is fixedly connected with cutting knife (68), the sliding plate (67) right end is fixedly connected with the left end of the rack (66).

6. A waste trimmer for a printing and packaging machine according to claim 5, characterized in that: The lower end right side front and right side rear of the rectangular plate (63) are fixedly connected with fixed blocks (631), the lower ends of the two fixed blocks (631) are fixedly connected with cylinders one (632), the inner surfaces of the cylinders one (632) are slidably connected with extrusion columns one (633), the lower end right side of the cutting knife (68) is fixedly connected with a guide plate (681), the lower end of the guide plate (681) is linearly arrayed and fixedly connected with a plurality of cylinders two (682), the inner surfaces of the plurality of cylinders two (682) are slidably connected with extrusion columns two (683), and the upper ends of the extrusion columns one (633) on the same side and the top walls of the cylinders one (632) on the same side which are close to each other and the upper ends of the extrusion columns two (683) on the same side and the top walls of the cylinders two (682) on the same side which are close to each other are all fixedly connected with springs two (684).

7. A waste trimmer for a printing and packaging machine according to claim 4, characterized in that: The transmission assembly (7) comprises two connecting plates (71), the lower ends of the two connecting plates (71) are fixedly connected with pressing plates (72) which are away from each other, the left end and the right end of the secondary plate (3) are fixedly connected with bases (73), the upper ends of the two bases (73) are fixedly connected with L-shaped plates two (74), the upper ends of the two L-shaped plates two (74) are provided with L-shaped grooves two (75), the horizontal part inner surfaces of the two L-shaped grooves two (75) are slidably connected with transmission plates (76), the pressing plates (72) are respectively slidably connected with the vertical part inner surfaces of the L-shaped grooves two (75) on the same side, and the transmission plates (76) on the same side and the L-shaped grooves two (75) on the same side which are close to each other are all linearly arrayed and fixedly connected with a plurality of springs three (77).

8. A waste trimmer for a printing and packaging machine according to claim 7, characterized in that: The ends of the two connecting plates (71) which are close to each other are respectively fixedly connected with the left end and the right end of the cavity box one (51).

9. A waste trimmer for a printing and packaging machine according to claim 7, characterized in that: The transmission plates (76) are matched with the cavity formed by the rectangular groove (45) and the huizi plate (46).

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